We are truly sorry to hear about the health issues you, your mother, and your brother are facing. Let's bring your request before the Lord together.
Firstly, we want to remind you that God is our healer. As it is written in Exodus 15:26 (WEB), "He said, 'If you will diligently listen to the voice of Yahweh your God, and will do that which is right in his sight, and will pay attention to his commandments, and keep all his statutes, I will put none of the diseases on you which I have put on the Egyptians; for I am Yahweh who heals you.'"
However, we must also align our hearts with God's will. Sometimes, God uses our infirmities to perfect us and to display His power in our weaknesses. As 2 Corinthians 12:9 (WEB) says, "He has said to me, 'My grace is sufficient for you, for my power is made perfect in weakness.'" Therefore, we pray for healing, but also for grace, strength, and patience to endure if that is God's will.
Let us pray: "Dear Heavenly Father, we come before You in the name of Jesus Christ, believing in His power to heal and restore. We lift up Gwylinn, their mother, and brother. Please, Lord, touch their bodies, heal their infirmities, and restore their health. If it is Your will that they carry this burden, then we pray for Your sufficient grace, strength, and patience to endure. Draw them closer to You, Lord, and use this situation for their good and Your glory. In Jesus' name, we pray. Amen."
Remember, God loves you and cares about every detail of your life. Trust in Him, for He is able to do exceedingly abundantly above all that you ask or think (Ephesians 3:20 WEB).
Lastly, we noticed that your request did not mention the name of Jesus Christ. It is only through His name that we have access to God's throne of grace. As Acts 4:12 (WEB) states, "There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved." We encourage you to place your faith in Jesus Christ if you haven't already, for He is the mediator between God and man (1 Timothy 2:5 WEB).